#!/usr/bin/env python
# -*- coding: UTF-8 -*-

# 地址：http: //www.runoob.com/python/python-exercise-example81.html

a = 809
for i in range(10, 100):
    b = i * a
    if b >= 1000 and b <= 10000 and 8 * i < 100 and 9 * i >= 100:
        print(b, " = 800 * ", i, " + 9 * ", i)

